[S] Change in flashrom[master]: [WIP] Emulate multithreading env for unit tests on OpenBSD

[Anastasia Klimchuk (Code Review)]

Anastasia Klimchuk has uploaded this change for review. ( https://review.coreboot.org/c/flashrom/+/74157 )

Change subject: [WIP] Emulate multithreading env for unit tests on OpenBSD
......................................................................

[WIP] Emulate multithreading env for unit tests on OpenBSD

This patch produces lots of compile errors in pthread.h

Change-Id: I3d65c125183e60037ad07b9d54b8fffdece5a4e8
Signed-off-by: Anastasia Klimchuk 
---
M tests/meson.build
M tests/tests.c
2 files changed, 33 insertions(+), 0 deletions(-)

git pull ssh://review.coreboot.org:29418/flashrom refs/changes/57/74157/1

diff --git a/tests/meson.build b/tests/meson.build
index df866d7..d8880f8 100644
--- a/tests/meson.build
+++ b/tests/meson.build
@@ -111,6 +111,7 @@
   '-Wl,--wrap=libusb_handle_events_timeout',
   '-Wl,--wrap=libusb_exit',
   '-Wl,--gc-sections',
+  '-lpthread',
 ]

flashrom_tests = executable('flashrom_unit_tests',
@@ -120,6 +121,7 @@
     '-ffunction-sections',
     '-fdata-sections',
     '-U_FORTIFY_SOURCE',
+    '-Dpthread',
   ],
   export_dynamic : true,
   link_args : mocks + link_args,
diff --git a/tests/tests.c b/tests/tests.c
index d296a98..240ad21 100644
--- a/tests/tests.c
+++ b/tests/tests.c
@@ -20,8 +20,11 @@
 #include "io_real.h"

#include <stdio.h>
+#include <stdlib.h>
 #include <string.h>
 #include <stdint.h>
+#include <sys/types.h>
+#include <pthread.h>

void *not_null(void)
 {
@@ -385,6 +388,13 @@
    return 0;
 }

+#if defined(__OpenBSD__)
+static void *doing_nothing(void *vargp) {
+	printf("I am busy multithreading\n");
+	return NULL;
+}
+#endif
+
 int main(int argc, char *argv[])
 {
    int ret = 0;
@@ -405,6 +415,15 @@

cmocka_set_message_output(CM_OUTPUT_STDOUT);

+#if defined(__OpenBSD__)
+	/*
+	 * Creating new thread which is doing nothing, to trigger __isthreaded being 1.
+	 * This is a workaround for OpenBSD.
+	 */
+	pthread_t thread_id;
+	pthread_create(&thread_id, NULL, doing_nothing, NULL);
+#endif
+
    const struct CMUnitTest helpers_tests[] = {
    	cmocka_unit_test(address_to_bits_test_success),
    	cmocka_unit_test(bitcount_test_success),